28853895168 has 320 divisors, whose sum is σ = 98582465520. Its totient is φ = 8238661632.

The previous prime is 28853895149. The next prime is 28853895173. The reversal of 28853895168 is 86159835882.

28853895168 is a `hidden beast` number, since 2 + 8 + 8 + 538 + 95 + 1 + 6 + 8 = 666.

It is a Smith number, since the sum of its digits (63) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 18578680 + ... + 18580232.

Almost surely, 2^28853895168 is an apocalyptic number.

28853895168 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28853895168, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (49291232760).

28853895168 is an abundant number, since it is smaller than the sum of its proper divisors (69728570352).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28853895168 is an frugal number, since it uses more digits than its factorization.

28853895168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1602 (or 1565 counting only the distinct ones).

The product of its digits is 33177600, while the sum is 63.

The spelling of 28853895168 in words is "twenty-eight billion, eight hundred fifty-three million, eight hundred ninety-five thousand, one hundred sixty-eight".